P1694 – BMW DTC

BMW DTC P1694 – Throttle Valve Actuator Start Test Spring Test and Limp-Home Position Failed (Bank 1)

DTC P1694 meaning on BMW

The DTC P1694 on a BMW refers to the Throttle Valve Actuator Start Test Spring Test and Limp-Home Position Failed in Bank 1. This diagnostic trouble code indicates an issue with the throttle valve actuator system, specifically related to the start test spring test and limp-home position in Bank 1 of the engine.

BMW DTC P1694 symptoms

Symptoms of the DTC P1694 on a BMW may include:

• Reduced engine power
• Engine stalling or rough idling
• Check Engine Light (CEL) illuminated on the dashboard
• Limp mode activation

BMW DTC P1694 causes

Common causes of the DTC P1694 on a BMW include:

• Throttle valve actuator failure
• Wiring or connector issues in the throttle valve actuator circuit
• Software or programming issues

BMW DTC P1694 seriousness

The DTC P1694 can lead to drivability issues and potential safety concerns if not addressed promptly. It is important to diagnose and fix this issue to ensure the proper functioning of the throttle valve actuator system in the vehicle.

How to diagnose DTC P1694 on BMW

To diagnose the DTC P1694 on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
2. Inspect the throttle valve actuator and its wiring for any visible damage or loose connections.
3. Perform a visual inspection of the throttle valve actuator system components for any signs of wear or malfunction.
4. Test the throttle valve actuator using a multimeter to check for proper voltage and resistance.

How to fix DTC P1694 on BMW

To fix the DTC P1694 on a BMW, you can try the following solutions:

1. Replace the faulty throttle valve actuator with a new one.
2. Repair any damaged wiring or connectors in the throttle valve actuator circuit.
3. Update the software or programming of the throttle valve actuator system.
4. Clear the fault codes using a diagnostic scanner after the repair is completed.

How to erase DTC P1694 on BMW

To erase the DTC P1694 on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port.
2. Access the scanner’s menu to clear the fault codes stored in the vehicle’s computer.
3. Follow the on-screen instructions to erase the DTC P1694 code.
4. Once the code is cleared, perform a test drive to ensure the issue has been resolved.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

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